I have IE9 installed on my 64 bit computer running Windows 7. When a web site says that I’m using an unsupported web browser and need to upgrade to IE9, I know to go into regedit.exe and remove Mozilla/4.0. The web sites then recognize my IE9 browser. This works fine until I reboot my computer and Mozilla/4.0 is back in my regedit.exe. Is there any way to remove Mozilla/4.0 permanently?